The development of PLIViewer was co-funded by the HBP during the second project phase (SGA1). This page is kept for reference but will no longer be updated.

The PLIViewer is visualization software for 3D-Polarized Light Imaging (3D-PLI), to interactively explore the scalar and vector datasets; it provides additional methods to transform data, thus revealing new insights that are not available in the raw representations. The high resolution provided by 3D-PLI produces massive, terabyte-scale datasets, which makes visualization challenging.

The PLIViewer tackles this problem by providing functionality to select areas of interests from the dataset, and options for downscaling. It makes it possible to interactively compute and visualize Orientation Distribution Functions (ODFs) and polar plots from the vector field, which reveal mesoscopic and macroscopic scale information from the microscopic dataset without significant loss of detail. The PLIViewer equips the neuroscientist with specialized visualization tools needed to explore 3D-PLI datasets through direct and interactive visualization of the data.


The original dataset: Fibre Orientation Maps rendered on top of Retardation map
A full slice from the Fibre Orientation Map of a Vervet Monkey
Orientation Distribution Functions (ODFs) rendered with Streamline Tractography
Close-up view of the ODFs
Date of releaseFebruary 2018
Version of software
Version of documentation1.1.0
Software availablehttp://
ResponsibleAli Demiralp:
Requirements & dependencies
Target system(s)